If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.

Enjoy an ad free experience by logging in. Not a member yet? Register.

Images/background not scaling with browser's zoom

Hi! I'm not a very skilled html/css coder, but today, I've visited a website with a feature that really impressed me, since I can't realize how it works and I'm really looking forward to learn that "technique".

It's all about images not getting resized with browser's zoom, but with its size. (Yes, I know... Its something UBER easy for sure, but again, I'm not that skilled)
I mean, if you set the browser window to "windowed" then you can see the image is going bigger, but if you CTRL + rolling down the mouse scroll wheel you can see the image size isn't being affected... It is an awesome way to display backgrounds IMO, and I really can't realize how this works, can some skilled coder explain me a little better how to achieve that kind of behavior?
Which div's structure is that site following along with CSS class to get that?